Because most people have their own idea of what is morally right in the world, and they want to cling onto that regardless of what other perspectives may exist. Both sides do this.
Also, in some cases, speaking the truth about something leads to them losing their jobs or livelihoods.
“It is difficult to get a man to understand something, when his salary depends on his not understanding it.” - Upton Sinclair
I myself can't get into any of those shorts style of content. 90% has some trash pop music in the background, which I really dislike. But, yeah, it's a thing now. Thanks TikTok (and Vine before them, can't completely let the memories of Vine die off)
May I suggest some long-form content to get you to not hit the recommended so much, like perhaps this documentary on Nortel? (watched both 90-minute videos without even thinking about stopping, despite never having heard of Nortel before they came out)